冰中取火
自定义头衔
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- 2008-04-28
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文章主要内容觉得就几句:“we find three central variants distinguished by amino acid changes, which we have named A, B, and C, with A being the ancestral type ” .....“The A and C types are found in significant proportions outside East Asia, that is, in Europeans and Americans. ” “B type is the most common type in East Asia”